Outlet structure of full-ring combustion chamber test piece

Abstract

The invention relates to an outlet structure of a full-ring combustion chamber test piece and an outlet assembly of the full-ring combustion chamber test piece, which are characterized by comprising a first flow guide part arranged at the outlet end of a flame tube positioned in an annular combustion chamber, and the first flow guide part comprises a first connecting part, a second connecting part and a third connecting part, the outer edge or the inner edge of the outlet of the flame tube extends along the inner side of the outlet of the flame tube in the radial direction of the combustion chamber; the first flow guide part is arranged at the end, away from the cartridge receiver, of the first connecting part in the radial direction of the combustion chamber, and the first flow guide part extends to the downstream from an outlet of the flame tube so as to guide flames sprayed out of the flame tube to the downstream of the outlet of the flame tube; the sealing piece is arranged on the side, close to the outlet of the flame tube, of the first connecting part and extends from the first flow guide component to the outer side of the outlet of the flame tube in the radial direction of the combustion chamber, and the outer edge or the inner edge of the outlet of the flame tube is movably connected with the sealing piece in an abutting mode.

Description

Technical Field

[0001] The present invention relates to the technical field of aero-engine tests, and more particularly, to an outlet structure of a full-annulus combustor test piece. Background Art

[0002] In an aero-engine, the combustor is the area where combustion is organized. The compressed air passing through the compressor enters the combustor and mixes with the fuel gas ejected from the fuel nozzle and then burns to generate high-temperature gas, which drives the turbine to do work and generate thrust. The development of an aero-engine often requires multi-level tests to ensure the performance and reliability, etc. from raw materials to the final installed parts. The high-temperature and high-pressure full-annulus combustor test piece is a relatively important link in the verification process, and the relevant test results can often directly support the subsequent core engine and even the whole engine test process.

[0003] In most current full-annulus combustor test pieces, including those in core engine and even whole engine tests, it is difficult to directly measure the temperature at the position in front of the turbine (i.e., the combustor outlet position). Mainly, calculation methods are used, and the calculation methods often have a high uncertainty and have not been verified. Therefore, a full-annulus combustor structure that independently controls and measures the bleed air in the inner and outer annulus cavities of the combustor to obtain the air quantity participating in combustion has emerged. Because the inner and outer annulus cavities bleed air independently and it is a heated and pressurized environment at the same time, deformation incoordination and other problems will occur in the outlet section of the combustor. The incoordinated outlet deformation is likely to cause an increase in stress on the outlet components, which poses relatively high design requirements for the outlet section structure of the full-annulus combustor. Summary of the Invention

[0004] The present invention aims to provide an outlet structure of a full-annulus combustor test piece to improve the problem of incoordinated deformation at circumferential positions of the outlet of the combustor in the prior art under high-temperature and high-pressure environments.

[0005] According to one aspect of an embodiment of the present invention, the present invention provides an outlet assembly of a full-annulus combustor test piece. The outlet assembly includes a first guiding component provided at the outlet end of a flame tube located in an annular combustor. The first guiding component includes:

[0006] A first connecting portion, which is connected to the casing surrounding the combustor and extends radially inward of the outlet of the flame tube from the outer edge or inner edge of the outlet of the flame tube along the radial direction of the combustor;

[0007] A first guiding portion, which is provided at one end of the first connecting portion away from the casing along the radial direction of the combustor. The first guiding portion extends downstream from the outlet of the flame tube to guide the flame ejected from the flame tube downstream of the outlet of the flame tube;

[0008] The seal piece is provided on one side of the first connection part close to the outlet of the flame tube, and extends along the radial direction of the combustion chamber outside the outlet of the flame tube by the first flow guiding component, and the outer edge or inner edge of the outlet of the flame tube is movably abutted against the seal piece.

[0009] In some embodiments,

[0010] The combustion chamber further includes an air extraction channel, and the air extraction channel includes a first section formed between the flame tube and the casing and parallel to the axial direction of the full-ring combustion chamber, and a second section communicated with the first section and arranged at the outlet end of the flame tube. The second section extends along the radial direction of the combustion chamber away from the outlet of the flame tube.

[0011] The outlet assembly further includes an air extraction component, and the air extraction component is sleeved on the casing and is provided with air extraction holes communicating the first section and the second section of the air extraction channel. The outer edge or inner edge of the flame tube is movably abutted against the seal piece to isolate the air extraction channel from the inner cavity of the flame tube.

[0012] In some embodiments, the installation position of the first flow guiding component relative to the outlet of the flame tube is configured to be adjustable along the radial direction of the combustion chamber.

[0013] In some embodiments, a first pin hole for installation on the casing is provided on the first connection part, and the first pin hole is a strip-shaped hole extending along the radial direction of the combustion chamber.

[0014] In some embodiments, the outlet assembly further includes a second flow guiding component, and the second flow guiding component includes:

[0015] A second connection part, connected to the casing, and extending along the radial direction of the combustion chamber inside the outlet of the flame tube from the outer edge or inner edge of the outlet of the flame tube. The second connection part is provided on one side of the first connection part away from the outlet of the flame tube;

[0016] A second flow guiding part, provided at one end of the second connection part along the radial direction of the combustion chamber away from the casing. The second flow guiding part extends from the first flow guiding part downstream of the outlet of the flame tube to guide the flame ejected from the flame tube downstream of the outlet of the flame tube;

[0017] Wherein, the second flow guiding part and the first flow guiding part are movably overlapped.

[0018] In some embodiments, the first flow guiding part includes a first part on one side of the first connection part close to the outlet of the flame tube and a second part on one side away from the outlet of the flame tube, and the second flow guiding part is movably overlapped with the second part of the first flow guiding part.

[0019] In some embodiments, the seal piece is provided on the first part of the first flow guiding part, and the seal piece extends from the first part of the first flow guiding part to the outside of the outlet of the flame tube.

[0020] In some embodiments, the outlet assembly further includes an intake component located between the first connection portion and the second connection portion. The intake component is provided with intake holes for delivering combustion-supporting or combustible gas to the outlet of the combustion chamber liner. The second flow guiding portion is provided with radial holes for flowing the combustion-supporting or combustible gas therethrough to deliver the combustion-supporting or combustible gas to the outlet of the combustion chamber liner.

[0021] In some embodiments, the first connection portion and the second connection portion are respectively disposed at two ends of the intake component along the axial direction of the combustion chamber and are respectively connected to the intake component. At least a part of the second flow guiding component is located between the first connection portion and the second connection portion.

[0022] In some embodiments, the intake component is mounted on the casing by bolts, and a pressing plate is disposed between the side of the intake component away from the casing and the nut of the bolt.

[0023] In some embodiments, the installation position of the second flow guiding component relative to the outlet of the combustion chamber liner is configured to be adjustable radially along the combustion chamber.

[0024] In some embodiments, the second connection portion is provided with second pin holes for mounting on the casing, and the second pin holes are strip-shaped holes extending radially along the combustion chamber.

[0025] Applying the technical solution of the present application, the outer edge of the outlet of the combustion chamber liner abuts against the seal segment 33 movably, which improves the problem of inconsistent deformation at each circumferential position of the outlet of the combustion chamber in the prior art under high-temperature and high-pressure environments.

[0026] Other features and advantages of the present invention will become clear from the following detailed description of the exemplary embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or in the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention, and those of ordinary skill in the art can also obtain other drawings without creative efforts based on these drawings.

[0028] Figure 1 FIG. shows a schematic structural diagram of a full-ring combustion chamber test piece according to an embodiment of the present invention;

[0029] Figure 2 FIG. shows a schematic structural diagram of an outlet structure of a full-ring combustion chamber test piece according to an embodiment of the present invention;

[0030] Figure 3 FIG. shows a three-dimensional structural diagram of an air extraction component of an outlet structure of a full-ring combustion chamber test piece according to an embodiment of the present invention;

[0031] Figure 4 Shows a partial enlarged view of location A of the air extraction component of the outlet structure of the full-annulus combustor test piece of the embodiment of the present invention;

[0032] Figure 5 Shows a three-dimensional structure diagram of the first flow guiding component of the air extraction component of the outlet structure of the full-annulus combustor test piece of the embodiment of the present invention;

[0033] Figure 6 Shows a cross-sectional structure diagram of the first flow guiding component of the air extraction component of the outlet structure of the full-annulus combustor test piece of the embodiment of the present invention;

[0034] Figure 7 Shows a three-dimensional structure diagram of the second flow guiding component of the air extraction component of the outlet structure of the full-annulus combustor test piece of the embodiment of the present invention;

[0035] Figure 8 Shows a cross-sectional structure diagram of the second flow guiding component of the air extraction component of the outlet structure of the full-annulus combustor test piece of the embodiment of the present invention;

[0036] Figure 9 Shows a three-dimensional structure diagram of the air inlet component of the air extraction component of the outlet structure of the full-annulus combustor test piece of the embodiment of the present invention;

[0037] Figure 10 Shows a cross-sectional structure diagram of the air inlet component of the air extraction component of the outlet structure of the full-annulus combustor test piece of the embodiment of the present invention;

[0038] Figure 11 Shows a three-dimensional structure diagram of the pressing plate of the air extraction component of the outlet structure of the full-annulus combustor test piece of the embodiment of the present invention; and

[0039] Figure 12 Shows a cross-sectional structure diagram of the pressing plate of the air extraction component of the outlet structure of the full-annulus combustor test piece of the embodiment of the present invention.

[0040] In the figure: 11, combustion chamber liner; 12, fuel nozzle; 13, casing; 14, diffuser; 15, igniter; 16, outer edge; 17, inner edge; 10, intake passage; 20, air extraction component; 21, air extraction hole; 22, first bolt hole; 23, blind pin hole; 30, first flow guiding component; 31, first connection part; 32, first flow guiding part; 33, sealing piece; 34, first pin hole; 40, second flow guiding component; 41, second connection part; 42, second flow guiding part; 43, radial hole; 44, second pin hole; 50, intake component; 51, second bolt hole; 52, third pin hole; 53, intake hole; 60, pin; 70, bolt; 80, pressing plate; 81, third bolt hole; 82, fourth pin hole; 90, air extraction passage; 91, first section; 92, second section. Detailed implementation mode

[0041] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and in no way constitutes a limitation on the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0042] As Figure 1 described, the full-ring combustion chamber test piece of this embodiment includes a casing 13 that encloses a ring-shaped combustion chamber, a combustion chamber liner 11 provided in the ring-shaped combustion chamber, a diffuser 14 for compressing air provided upstream of the inlet end of the combustion chamber liner 11, a fuel nozzle 12 provided at the inlet end of the combustion chamber liner 11, and an igniter 15 provided in the combustion chamber. In some embodiments, the igniter 15 includes an ignition plug. One end of the combustion chamber liner 11 along the axial direction of the combustion chamber is the inlet end, and the other end is the outlet end.

[0043] The combustion chamber is ring-shaped. The casing 13 includes an outer casing and an inner casing sleeved inside the outer casing. The outer casing and the inner casing are spaced apart to form a ring-shaped combustion chamber between the inner casing and the outer casing.

[0044] In some embodiments, the combustion chamber liner 11 is arc-shaped and sleeved between the outer casing and the inner casing. In other embodiments, a plurality of combustion chamber liners 11 are arranged in the ring-shaped combustion chamber between the inner casing and the outer casing, and the plurality of combustion chamber liners 11 are arranged circumferentially.

[0045] An air extraction passage 90 is further provided in the combustion chamber. At least part of the air extraction passage 90 is formed between the combustion chamber liner 11 and the casing. At least a part of the air extraction passage 90 is respectively formed between the combustion chamber liner 11 and the outer casing and between the combustion chamber liner 11 and the inner casing.

[0046] The bleed air channel 90 includes a first section 91 formed between the flame tube 11 and the casing 13 and parallel to the axial direction of the full-annular combustion chamber, and a second section 92 connected to the first section 91 and arranged at the outlet end of the flame tube 11. The second section 92 extends in the radial direction of the combustion chamber away from the outlet of the flame tube 11. The second section 92 of the bleed air channel 90 is arranged at one end of the first section 91 close to the outlet of the flame tube 11.

[0047] One end of the bleed air passage 90 close to the diffuser 14 is the inlet end, and an air inlet hole connected to the first section 91 of the bleed air passage 90 is provided on the circumferential surface of the flame tube 11. A portion of the combustion-supporting gas (such as air) introduced at the inlet end of the bleed air passage 90 enters the flame tube 11 through the above-mentioned air inlet hole to participate in combustion, and the other portion is discharged through the second section 92 of the bleed air passage 90.

[0048] The full-ring combustion chamber test piece also includes an intake passage 10 for supplementing combustion-supporting gas (such as air) to the outlet of the flame tube 11, and the intake passage 10 extends radially of the combustion chamber. The intake passage 10 is arranged on a side of the second section 92 of the bleed air passage 90 away from the first section 91.

[0049] In order to improve the problem of excessive stress caused by the incoordination of deformation at various circumferential positions of the combustion chamber outlet in the prior art, this embodiment provides an outlet assembly of a full-ring combustion chamber test piece, the outlet assembly includes a first guide component 30 provided at the outlet end of the flame tube 11 located in the annular combustion chamber. The first guide component 30 includes a first connecting portion 31, a first guide portion 32 and a sealing sheet 33.

[0050] The first connecting portion 31 is connected to the casing 13 that encloses the combustion chamber, and extends from the outer edge 16 or the inner edge 17 of the outlet of the flame tube 11 along the radial direction of the combustion chamber to the inner side of the outlet of the flame tube 11 (that is, the side of the outlet of the flame tube 11 close to the center line of the combustion chamber).

[0051] The first guide portion 32 is disposed at one end of the first connecting portion 31 away from the casing 13 in the radial direction of the combustion chamber. The first guide portion 32 extends downstream from the outlet of the flame tube 11 to guide the flame ejected from the flame tube 11 downstream of the outlet of the flame tube 11.

[0052] The sealing piece 33 is arranged on one side of the first connecting portion 31 close to the outlet of the flame tube 11 and extends from the first guide portion 32 to the outer side of the outlet of the radial flame tube 11 along the combustion chamber. The outer edge 16 of the outlet of the flame tube 11 is movably abutted against the sealing piece 33.

[0053] In this embodiment, the outlet end of the flame tube 11 is a free end without restraint. The seal piece 30 is movably abutted against the outer edge 16 of the outlet of the flame tube 11. The outer edge 16 of the outlet of the flame tube 11 can move radially with respect to the seal piece along the radial direction of the combustion chamber. Therefore, the outlet of the flame tube 11 can be freely deformed without restraint along the radial direction of the combustion chamber on the premise that the outer edge 16 ensures abutment against the seal piece 33, which is beneficial to reducing the stress generated due to deformation at the outlet.

[0054] Furthermore, one end of the seal piece 33 away from the first flow guiding part 32 is a free end. The seal piece 33 can produce a certain elastic deformation under the push of the outer edge 16 of the outlet of the flame tube 11. Therefore, the outlet assembly of this embodiment is beneficial to reducing the stress generated when the outlet of the flame tube 1 deforms axially.

[0055] The outer edge 16 and the inner edge 17 enclose the outlet of the annular flame tube 11. Figure 2 The figure shows the structure of the outlet assembly of the full-ring combustion chamber test piece installed at the outlet installed on the outer edge of the outlet of the flame tube 11. The first connecting part 31 of the first flow guiding component 30 is connected to the outer casing. The structure of the outlet assembly installed on the inner edge 17 is similar to that of the outlet assembly installed on the outer edge 16. The first connecting part 31 of the first flow guiding component 30 of the outlet assembly installed on the inner edge 17 is connected to the inner casing.

[0056] See Figures 1 to 4 As shown, the outlet assembly further includes an air extraction component 20. The air extraction component 20 is sleeved on the casing 13 and is provided with air extraction holes 21 communicating with the first section 91 and the second section 92 of the air extraction channel 90. The outer edge 16 or the inner edge 17 of the flame tube 11 is movably abutted against the seal piece 33 to isolate the air extraction channel 90 and the inner cavity of the flame tube 11.

[0057] The air extraction component 20 is provided with first bolt holes 22, and the first bolt holes 22 are configured to be connected to the connecting bolts 70. The connecting bolts 70 are used to install the air extraction component 20 on the casing 13.

[0058] The air extraction component 20 includes an annular air extraction component main body coaxial with the combustion chamber and an air extraction component connecting part connected to the air extraction component main body and extending radially toward the air extraction component main body along the radial direction of the combustion chamber.

[0059] Wherein, the air extraction holes 21 extend radially along the combustion chamber. The air extraction holes 21 are used to guide a part of the gas in the air extraction channel 90 between the casing 13 and the flame tube 11 to the outside of the combustion chamber test piece. The first bolt holes 22 are arranged on the air extraction component connecting part and extend along the direction parallel to the axial direction of the combustion chamber.

[0060] Combined with Figure 1 、 2As shown in FIGS. 5 and 6, the installation position of the first flow guiding member 30 relative to the outlet of the combustion chamber 11 is configured to be radially adjustable along the combustion chamber.

[0061] In some embodiments, a first pin hole 34 for mounting on the casing 13 is provided on the first connecting portion 31, and the first pin hole 34 is a strip-shaped hole extending radially along the combustion chamber.

[0062] See Figure 2 The outlet assembly of the full-ring combustion chamber test piece further includes a second flow guiding member 40. See Figure 7 and 8 , and the second flow guiding member 40 includes a second connecting portion 41 and a second flow guiding portion 42.

[0063] The second connecting portion 41 is connected to the casing 13 and extends radially inward along the combustion chamber from the outer edge 16 or the inner edge 17 of the outlet of the combustion chamber 11. The second connecting portion 41 is provided on the side of the first connecting portion 31 away from the outlet of the combustion chamber 11.

[0064] The second flow guiding portion 42 is provided at one end of the second connecting portion 41 radially away from the casing 13 along the combustion chamber. The second flow guiding portion 42 extends downstream from the first flow guiding portion 31 toward the outlet of the combustion chamber 11 to guide the flame ejected from the combustion chamber 11 downstream. Among them, the second flow guiding portion 42 and the first flow guiding portion 32 are movably overlapped, and the first flow guiding portion 32 and the second flow guiding portion 42 are arranged in sequence along the axial direction parallel to the combustion chamber, which is beneficial to reducing the stress generated when the outlet of the combustion chamber 1 deforms axially.

[0065] In some embodiments, the installation position of the second flow guiding member 40 relative to the outlet of the combustion chamber 11 is configured to be radially adjustable along the combustion chamber.

[0066] In some embodiments, a second pin hole 44 for mounting on the casing 13 is provided on the second connecting portion 41, and the second pin hole 44 is a strip-shaped hole extending radially along the combustion chamber.

[0067] In some embodiments, the first flow guiding portion 32 includes a first portion on the side of the first connecting portion 31 close to the outlet of the combustion chamber 11 and a second portion on the side away from the outlet of the combustion chamber 11, and the second flow guiding portion 41 is movably overlapped with the second portion of the first flow guiding portion 32.

[0068] In some embodiments, the sealing piece 33 is provided on the first portion of the first flow guiding portion 31, and the sealing piece 33 extends outward from the first portion of the first flow guiding portion 31 toward the outlet of the combustion chamber 11.

[0069] Refer to Figure 2, the outlet assembly of the full-annular combustor test piece further includes an intake component 50 located between the first connection part 31 and the second connection part 41. The intake component 50 communicates with the intake passage 10. Refer to Figure 9 and 10 , the intake component 50 is provided with intake holes 53 for delivering combustion-supporting or combustible gas to the outlet of the flame tube 11, and the second guiding part 42 is provided with radial holes 43 for flowing the combustion-supporting or combustible gas to deliver the combustion-supporting or combustible gas to the outlet of the flame tube 11.

[0070] In some embodiments, the first connection part 31 and the second connection part 41 are respectively arranged at both ends of the intake component 50 along the axial direction of the combustor and are respectively connected to the intake component 50, and at least a part of the second guiding component 42 is located between the first connection part 31 and the second connection part 41.

[0071] In some embodiments, the intake component 50 is mounted on the casing 13 through bolts 70, and a pressing plate 80 is arranged between the side of the intake component 50 away from the casing 13 and the nuts of the bolts 70.

[0072] Refer to Figure 5 and Figure 6 , the sealing piece 33 overlaps the flame tube 11 for sealing the outlet of the flame tube 11. The first part of the first guiding part 32 is soft-lapped with the second guiding part 41 of the second guiding component 40 to realize axial free movement. The radial length a of the kidney-shaped first pin hole 34 (see Figure 6 ) is greater than the diameter of the pin 60, so the first guiding part 30 can realize free movement in the radial direction.

[0073] Refer to Figure 7 and 8 , the second guiding component 40 mainly consists of a second connection part 41, a second guiding part 42 and a kidney-shaped second pin hole 44. The second guiding part 42 is lapped with the straight first guiding part 32, and the radial length b of the kidney-shaped second pin hole 44 (see Figure 8 ) is greater than the diameter of the pin 60, so the second guiding component 40 can move freely in the radial direction.

[0074] As Figure 9 and 10 shown, the intake component 50 mainly consists of a second bolt hole 51, a third pin hole 52 and intake holes 53. The second bolt hole 51 is used for passing through the bolts 70, the third pin hole 52 is used for installing and fixing the pins 60, and the intake holes 53 supply gas from the outside of the test piece to the inside of the test piece, that is, independent gas supply for the outlet section.

[0075] As Figure 11 and 12As shown, the pressing plate 80 mainly consists of a third bolt hole 81 and a fourth pin hole 82. The third bolt hole 81 is used for passing through the bolt 70, and the fourth pin hole 82 is used for installing and fixing the pin 60.

[0076] First, the air bleeding component 20 is installed in the casing 13. Then, the pin 60 is inserted into the pin blind hole 23 on the air bleeding component 20, and the first flow guiding component 30 is installed in the air bleeding component 20, while ensuring that each pin 60 passes through the kidney-shaped first pin hole 33. Subsequently, the third pin hole 52 on the air intake component 50 is aligned with the pin 60 for assembly. Similarly, the pin 60 is inserted into the third pin hole 52 on the air intake component 50, and the second flow guiding component 40 is passed through the pin 60 fixed on the air intake component 50. Finally, the pressing plate 80 and the bolt 70 are installed. The first flow guiding component 30 and the second flow guiding component 40 are overlapped by the boss to achieve free axial movement. There is a certain space in the radial direction between the connection holes of the first flow guiding component 30 and the second flow guiding component 40 with the pin 60, realizing the free radial floating of the first flow guiding component 30 and the second flow guiding component 40.

[0077] By designing the first flow guiding component 30 and the second flow guiding component 40 as an overlapping structure, the outlet section structure can be deformed and slid arbitrarily in the axial direction without generating large stresses.

[0078] By using pins to fix the sealing section 30 and the second flow guiding component 40, and leaving a large gap at the fixed position, the free radial deformation of the second flow guiding component and the sealing section 30 is achieved.

[0079] The above are only exemplary embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An outlet assembly of a full-annular combustor test piece, characterized in that, A first flow guiding component (30) disposed at the outlet end of a flame tube (11) provided in an annular combustion chamber, the first flow guiding component (30) comprising: A first connecting portion (31) connected to a casing (13) surrounding the combustion chamber and extending radially inward from the outer edge (16) or inner edge (17) of the outlet of the flame tube (11) along the radial direction of the combustion chamber to the inside of the outlet of the flame tube (11); A first flow guiding portion (32) disposed at one end of the first connecting portion (31) away from the casing (13) along the radial direction of the combustion chamber, the first flow guiding portion (32) extending downstream from the outlet of the flame tube (11) to guide the flame ejected from the flame tube (11) downstream of the outlet of the flame tube (11); A sealing piece (33) disposed on a side of the first connecting portion (31) close to the outlet of the flame tube (11) and extending radially outward from the first flow guiding portion (32) along the radial direction of the combustion chamber to the outside of the outlet of the flame tube (11), and the outer edge (16) or inner edge (17) of the outlet of the flame tube (11) is movably abutted against the sealing piece (33).

2. The outlet assembly of the full-ring combustion chamber test piece according to claim 1, characterized in that The combustion chamber further includes an air extraction channel (90), the air extraction channel (90) including a first section (91) formed between the flame tube (11) and the casing (13) and parallel to the axis of the full-ring combustion chamber, and a second section (92) communicating with the first section (91) and disposed at the outlet end of the flame tube (11), the second section (92) extending radially away from the outlet of the flame tube (11) along the radial direction of the combustion chamber, The outlet assembly further includes an air extraction component (20), the air extraction component (20) is sleeved on the casing (13) and is provided with an air extraction hole (21) communicating the first section (91) and the second section (92) of the air extraction channel (90), and the outer edge (16) or inner edge (17) of the flame tube (11) is movably abutted against the sealing piece (33) to isolate the air extraction channel (90) from the inner cavity of the flame tube (11).

3. The outlet assembly of the full-annular combustor test piece according to claim 1, characterized in that, The installation position of the first flow guiding component (30) relative to the outlet of the flame tube (11) is configured to be adjustable radially along the combustion chamber.

4. The outlet assembly of the full-annular combustor test piece according to claim 3, characterized in that, A first pin hole (34) for installation on the casing (13) is provided on the first connecting portion (31), and the first pin hole (34) is a strip-shaped hole extending radially along the combustion chamber.

5. The outlet assembly of the full-annular combustor test piece according to claim 1, wherein It further includes a second flow guiding component (40), the second flow guiding component (40) comprising: A second connecting portion (41) connected to the casing (13) and extending radially inward from the outer edge (16) or inner edge (17) of the outlet of the flame tube (11) along the radial direction of the combustion chamber to the inside of the outlet of the flame tube (11), and the second connecting portion (41) is disposed on a side of the first connecting portion (31) away from the outlet of the flame tube (11); The second flow guiding part (42) is arranged at one end of the second connecting part (41) along the radial direction of the combustion chamber and away from the casing (13). The second flow guiding part (42) extends from the first flow guiding part (31) downstream of the outlet of the flame tube (11) to guide the flame ejected from the flame tube (11) downstream of the outlet of the flame tube (11). Wherein, the second flow guiding part (42) and the first flow guiding part (32) are movably lapped.

6. The outlet assembly of the full-ring combustion chamber test piece according to claim 5, characterized in that, The first flow guiding part (32) includes a first part on the side of the first connecting part (31) close to the outlet of the flame tube (11) and a second part on the side away from the outlet of the flame tube (11). The second flow guiding part (41) is movably lapped with the second part of the first flow guiding part (32).

7. The outlet assembly of the full-ring combustion chamber test piece according to claim 6, characterized in that, The sealing piece (33) is arranged on the first part of the first flow guiding part (31), and the sealing piece (33) extends from the first part of the first flow guiding part (31) to the outside of the outlet of the flame tube (11).

8. The outlet assembly of the full-annular combustor test piece according to claim 5, characterized in that, It further includes an air inlet component (50) located between the first connecting part (31) and the second connecting part (41). An air inlet hole (53) for delivering combustion-supporting or combustible gas to the outlet of the flame tube (11) is arranged on the air inlet component (50). The second flow guiding part (42) is provided with a radial hole (43) for flowing the combustion-supporting or combustible gas to deliver the combustion-supporting or combustible gas to the outlet of the flame tube (11).

9. The outlet assembly of the full-annular combustor test piece according to claim 8, characterized in that, The first connecting part (31) and the second connecting part (41) are respectively arranged at both ends of the air inlet component (50) along the axial direction of the combustion chamber and are respectively connected to the air inlet component (50). At least a part of the second flow guiding component (42) is located between the first connecting part (31) and the second connecting part (41).

10. The outlet assembly of the full-annular combustor test piece according to claim 8, characterized in that, The air inlet component (50) is installed on the casing (13) through bolts (70), and a pressing plate (80) is arranged between the side of the air inlet component (50) away from the casing (13) and the nut of the bolt (70).

11. The outlet assembly of the full-annular combustor test piece according to claim 5, characterized in that, The installation position of the second flow guiding component (40) relative to the outlet of the flame tube (11) is configured to be adjustable along the radial direction of the combustion chamber.

12. The outlet assembly of the full-ring combustion chamber test piece according to claim 11, characterized in that, A second pin hole (44) for installation on the casing (13) is arranged on the second connecting part (41), and the second pin hole (44) is a strip-shaped hole extending along the radial direction of the combustion chamber.

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